Found a fix for my crackling problem
It sounds like many people are having success with different techniques. I don't recall seeing my fix here, so I'll mention it as well.
In the beginning, Windows 7 recognized my card and installed some default drivers from 2006. I actually had no sound at all.
For starters, I pulled the Vista drivers for the Audigy series using a Google search. Can't remember exactly which page they came from, but they were easy enough to find. I had to run the install in compatibility mode or else the installer would complain about an unsupported OS. After the installation completed and I choose to reboot, I had immediate success as I finally heard audio for the Windows sound that is played when you...